Analysis of interatomic Contacts of Structural Units in PDB entry:
2AHS


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 2AHS entry

There are 2 chains in PDB entry 2AHS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 1687ARG 1967
B
 MET 1693ALA 1966
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are 17 helices in PDB entry 2AHS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
1687 1710Right-handed alpha
Helix 2
2
A
1719 1724Right-handed alpha
Helix 3
3
A
1725 1731Right-handed 310
Helix 4
4
A
1752 1755Right-handed 310
Helix 5
5
A
1779 1781Right-handed 310
Helix 6
6
A
1782 1793Right-handed alpha
Helix 7
7
A
1876 1893Right-handed alpha
Helix 8
8
A
1908 1928Right-handed alpha
Helix 9
9
A
1931 1943Right-handed alpha
Helix 10
10
A
1949 1966Right-handed alpha
Helix 11
11
B
1694 1710Right-handed alpha
Helix 12
12
B
1720 1731Right-handed 310
Helix 13
13
B
1782 1793Right-handed alpha
Helix 14
14
B
1876 1893Right-handed alpha
Helix 15
15
B
1908 1926Right-handed alpha
Helix 16
16
B
1931 1943Right-handed alpha
Helix 17
17
B
1949 1965Right-handed alpha
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There are 4 sheets in PDB entry 2AHS. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 9 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1743 1745first strand
Strand 2
A
1757 1763anti-parallel
Strand 3
A
1772 1775anti-parallel
Strand 4
A
1900 1903parallel
Strand 5
A
1797 1800parallel
Strand 6
A
1858 1865parallel
Strand 7
A
1841 1850anti-parallel
Strand 8
A
1828 1837anti-parallel
Strand 9
A
1823 1825anti-parallel
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There are 2 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1805 1806first strand
Strand 2
A
1809 1810anti-parallel
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There are 9 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
1743 1745first strand
Strand 2
B
1757 1763anti-parallel
Strand 3
B
1772 1775anti-parallel
Strand 4
B
1900 1903parallel
Strand 5
B
1797 1800parallel
Strand 6
B
1853 1865parallel
Strand 7
B
1841 1850anti-parallel
Strand 8
B
1828 1837anti-parallel
Strand 9
B
1823 1825anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
1805 1806first strand
Strand 2
B
1809 1810anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il